hi, i've seen a 2002 cl600 with 30,000 miles. i cannot detect any oil leaks in the engine compartment. the car drives beautifully and no messages, or warnings on the dash, except that somehow the spring for the hood where it closes at the front came off and the car throws a hood warning light. the car seems to be well cared for. the only problem i came across with my untrained inspection was that the front suspension resevoir was low. the rear resevoir was fine. the suspension seemed to be at the right level, i'm looking at an every day driver and feel i might be getting in over my head. what are your thoughts and what actual gas mileage can i expect.